CN102562783A - Variable-performance radial bearing formed by controllable tilting pad and bearing pad - Google Patents
Variable-performance radial bearing formed by controllable tilting pad and bearing pad Download PDFInfo
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- CN102562783A CN102562783A CN2012100073380A CN201210007338A CN102562783A CN 102562783 A CN102562783 A CN 102562783A CN 2012100073380 A CN2012100073380 A CN 2012100073380A CN 201210007338 A CN201210007338 A CN 201210007338A CN 102562783 A CN102562783 A CN 102562783A
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Abstract
The invention relates to a variable-performance radial bearing formed by controllable tilting pads and a bearing pad. The variable-performance radial bearing consists of nine controllable tilting pads and one bearing pad. The bearing pad is a fixed pad and is arranged at the bottom of the bearing. The nine controllable tilting pads are distributed in three rows along an axial direction at equal distances and are distributed in three lines along a circumferential direction at equal angles. Each controllable tilting pad comprises a controller and a tilting pad. The variable-performance radial bearing formed by the controllable tilting pads and the bearing pad has the beneficial effects that the radial position of the tilting pads can be changed by rotating a controller adjusting screw, the dynamic characteristic of the bearing can be changed and the dynamic characteristic coefficient of the bearing can be recognized; since the bearing is longer than a common bearing, the situations that a rotor tilts and deflects when the rotor is supported by a single bearing can be effectively avoided by controlling the radial position of the tilting pads at two ends; by controlling the nine tiling pads in a combined way, various loading ways can be simulated and the bearing performance similar to bearings such as elliptical bearings can be generated; the variable-working-condition adaptability of the bearing and the power stability of a bearing-rotor system are improved.
Description
Technical field
The invention belongs to the sliding bearing technical field, relate to a kind of by controlled tilting pad and the collaborative work of carrying tile fragment, common variable, the discernible radial bearing of rigidity, damping constant that constitutes.
Background technique
Radial sliding bearing is widely used a kind of critical piece in the rotating machinery; Be that the easiest inefficacy of entire machine and tool influence one of parts of its mechanical property; Under large high-speed underloading or middle carrying commentaries on classics condition, through with design bearing being the form that structurally variable, performance are controlled, can survey, to improving the quiet dynamic response of bearing; Improve bearing variable working condition adaptive capacity, improving the bearing operational reliability, improving the bearing rotor system kinetic stability is that realistic meaning is arranged very much.
The radial sliding bearing type that is used for engineering at present is mainly fixedly pad bearing [U.S. Pat 5456535:Journal bearing; The license date: October 10 nineteen ninety-five] and tilting-pad bearing [U.S. Pat 5795077:Tilting Pad Journal bearing, license date: on August 18th, 1998].Done more research [JP2005344899-A (F16C-017/03), US2004032996-A1 (F16C-017/00), US5423613-A (F16C-017/03), CN1095528C (F16C17/03)] in improvement tilting-pad bearing structure aspects both at home and abroad in recent years.Fixing watt sliding bearing structure is simple, bearing capacity big, be easy to processing, thereby is widely used, but fixing watt sliding bearing kinetic stability commonly used is relatively poor, rigidity is lower.The general kinetic stability of watt sliding bearing is better though can incline, and complex structure, bearing capacity are relatively low.The common feature that they exist is that bearing performance is uncontrollable, can not satisfy in the changeable demand of reliably working down of operating mode.At patent structure-changeable self-adaptive sliding bearing [Chinese patent 99115719.2: structure-changeable self-adaptive sliding bearing; The license date: on December 4th, 2002] in; Having proposed a kind of ladder height can carry out the change ladder bearing that servo-actuated changes automatically with load, has advantages of high bearing capacity and stability.This variation that changes the quiet dynamic response of caused bearing because of bearing structure is a mutation process.Relatively therewith, the present invention proposes a kind of rigidity, damping constant can gradual, discernible novel sex change can bearing.
Summary of the invention
The objective of the invention is to propose a kind of by controlled tilting pad with carry sex change that tile fragment constitutes can radial bearing, rigidity, the damping constant of this bearing is variable, controlled and can discern, and has the characteristics of high bearing capacity and high stability.
The technical solution adopted for the present invention to solve the technical problems is:
By controlled tilting pad with carry sex change that tile fragment constitutes can radial bearing; Comprise 9 controlled incline watt and 1 carry watt; Said controlled tilting pad waits gap distribution three rows vertically; The ratio of gap and bearing diameter is between 0.03-0.04, and middle row's center and carrying tile fragment center-aligned; Said controlled tilting pad is along circumferentially waiting angle distribution three row, and angular range is 10 °-45 °, and the controlled tilting pad of middle column is positioned at vertical direction.
Said controlled tilting pad comprises controller and tilting pad 6, contacts for line between said tilting pad 6 and the controller.
Said controller comprises adjustment screw 1 and cylinder support block 3, and the employing fine thread is connected between said adjustment screw 1 and the bearing housing 7, has between said cylinder support block 4 and the bearing housing 7 and only revolves key 5.
Between said adjustment screw 1 and the cylinder support block 4 control spring 3 is arranged, said control spring 3 rigidity are less than 5% of bearing film rigidity.
Between said adjustment screw 1 and the control spring 3 rotation-stop device 2 is arranged, said rotation-stop device 2 is made up of thrust-bearing and thrust metal.
The present invention comprises 9 controlled tilting pads and 1 carrying tile fragment by a kind of sex change ability radial bearing that controlled tilting pad and carrying tile fragment constitute.Oil clearance between 9 controlled tilting pads and the rotor all be adjustable respectively.Generally, only utilize 6 tilting pads at axial two ends to carry, during operation; If rotor generation deflection, can be in real time according to the deflection situation of rotor, through the oil clearance of adjustment two ends tilting pad; Correct the deflection of rotor, make rotor be returned to level.When the oil film rigidity size can not satisfy the test needs, 3 tilting pads of row carried in the middle of can also utilizing.
9 tilting pads are that bullet props up watt, and the oil clearance that bullet props up watt can be regulated through preload force.Preload force produces through regulating adjustment screw 1 compression control spring 3, and the size of preload force can realize through the decrement of adjustment control spring 3.The structural rigidity of controlled tilting pad is approximately the rigidity of control spring 3, and the rigidity of control spring 3 can be eliminated the influence of the structural rigidity of controlled tilting pad when dynamic coefficients is discerned for oil film rigidity identification less than 5% of bearing film rigidity.Also can be without control spring to watt realization preload that can incline with hydraulic oil; Thereby change bearing performance; But because hydraulic oil self rigidity, damping constant disturbs, so the dynamic coefficients of hydraulic pressure preload bearing is difficult to be identified, and the spring preload is one of characteristics of the present invention.
The invention has the beneficial effects as follows: change tilting pad 6 radial positions through rotation controller adjustment screw 4, thereby change the bearing dynamic characteristic, and its dynamic coefficients can be identified; This bearing is longer than plain bearing, through tilting-pad radial position, place, control bearing two ends, can prevent effectively that rotor tilt, deflection phenomenon from appearring in the rotor single shaft when holding support; 9 of composite control can be inclined watt, can simulate various loading forms, produce the load-carrying properties like types of bearings such as elliptic bearings; Bearing variable working condition adaptive capacity and bearing rotor system kinetic stability have been improved.
Description of drawings
Fig. 1 for the present invention by controlled tilting pad with carry the controlled tilting pad that sex change that tile fragment constitutes can radial bearing.
Fig. 2 for the present invention by controlled tilting pad with carry first kind of example structure schematic representation that sex change that tile fragment constitutes can radial bearing.
Fig. 3 for the present invention by controlled tilting pad with carry second kind of example structure schematic representation that sex change that tile fragment constitutes can radial bearing.
Among the figure: 1. adjustment screw 2. rotation-stop devices 3. control springs 4. cylinder support blocks 5. only revolve key 6. tilting pads 7. bearing housinges 8. rotors 9. carrying tile fragments
Embodiment
Referring to accompanying drawing 1, the controlled tilting pad among the present invention by adjustment screw 1, rotation-stop device 2, control spring 3, cylinder support block 4, only revolve key 5, tilting pad 6 and bearing housing 7 and form.The employing fine thread is connected between adjustment screw 1 and the bearing housing 7; Rotation adjustment screw 1 can make control spring 3 produce camber of spring power by compression control spring 3; Camber of spring power affacts on the tilting pad 6 changing the dynamic response of bearing film through cylinder support block 4, and dynamic coefficients can be identified.Adjustment screw 1 has moment of torsion when rotated, needs this twist motion is converted into the compressional movement to control spring, between adjustment screw 1 and control spring 3, is provided with rotation-stop device 2.Rotation-stop device 2 comprises thrust-bearing and thrust metal.Cylinder support block 4 rotations for preventing that the microvariations moment of torsion from causing are provided with between cylinder support block 4 and bearing housing 7 and only revolve key 5.Cylinder support block 4 contacts for line with tilting pad 6; Cylinder support block 4 tops have in the groove of protruding embedding tilting pad 6, and tilting pad 6 is applied axial constraint; Cylinder support block 4 tops convexity is the cylndrical surface, and is tangent with tilting pad 6 groove upper surfaces.Cooperating structure between cylinder support block 4 and the tilting pad 6 can be guaranteed the flexible beat of tilting pad 6, avoids contact position stress to concentrate simultaneously.
Referring to accompanying drawing 2, the present invention by controlled tilting pad with carry first kind of example structure schematic representation that sex change that tile fragment constitutes can radial bearing.Sex change by controlled tilting pad and carrying tile fragment constitute can be made up of 9 controlled tilting pads and 1 carrying tile fragment by radial bearing; Carry tile fragment and be arranged on the bearing bottom; Controlled tilting pad is along rotor axial distribution three rows; The gap equates between adjacent two rows, the ratio of gap and bearing diameter between 0.03-0.04, in the middle of crossing the vertical plane at row's tilting pad center with carry tile fragment 9 centers vertical plane overlap; Said controlled tilting pad is along periphery of rotor three row that distribute, and angle equates that angular range is 10-45 ° between adjacent two row, and middle column controlled incline watt be positioned at vertical direction.Controlled tilting pad is positioned at rotor top, and the tile fragment of rotor below carries watt as main.
Referring to accompanying drawing 3, the present invention by controlled tilting pad with carry second kind of example structure schematic representation that sex change that tile fragment constitutes can radial bearing.By controlled tilting pad with to carry sex change that tile fragment constitutes identical among distribution and the first kind of embodiment of controlled tilting pad in can radial bearing, also be axial three to arrange, circumferential three are listed as.Be with first kind of embodiment's difference, controlled incline watt be positioned at the rotor below, the auxiliary tile fragment that carries is positioned at the rotor top, carries out spacing to rotor.This embodiment has made full use of carries watt self balancing characteristics of can inclining, and makes that bearing variable working condition adaptive capacity is stronger.
Claims (7)
1. the sex change ability radial bearing that constitutes by controlled tilting pad and carrying tile fragment; Comprise 9 controlled incline watt and 1 carry watt; It is characterized in that: said controlled tilting pad waits gap distribution three rows vertically; The ratio of gap and bearing diameter is between 0.03-0.04, and middle row's center and carrying tile fragment center-aligned; Said controlled tilting pad is along circumferentially waiting angle distribution three row, and angular range is 10 °-45 °, and the controlled tilting pad of middle column is positioned at vertical direction.
2. the sex change ability radial bearing that constitutes by controlled tilting pad and carrying tile fragment according to claim 1; It is characterized in that: said controlled tilting pad comprises controller and tilting pad (6); For line contacts, controller supports the motion of tilting pad between said tilting pad (6) and the controller.
3. like the said sex change ability radial bearing that constitutes by controlled tilting pad and carrying tile fragment of claim 2; It is characterized in that: said controller comprises adjustment screw (1) and cylinder support block (4); Adopt fine thread to be connected between said adjustment screw (1) and the bearing housing (7); Have between said cylinder support block (4) and the bearing housing (7) and only revolve key (5), said tilting pad contacts with cylinder support block line.
4. like said controlled tilting pad of claim 3 and the sex change ability radial bearing that carries the tile fragment formation, it is characterized in that: between said adjustment screw (1) and the cylinder support block (4) control spring (3) is arranged, said control spring rigidity is less than 5% of bearing film rigidity.
5. like said controlled tilting pad of claim 4 and the sex change ability radial bearing that carries the tile fragment formation, it is characterized in that: between said adjustment screw (1) and the control spring (3) rotation-stop device (2) is arranged, said rotation-stop device (2) is made up of thrust-bearing and thrust metal.
As each said controlled tilting pad of claim 1-5 with carry sex change that tile fragment constitutes can radial bearing, it is characterized in that: controlled tilting pad is positioned at the rotor top, the tile fragment of rotor below is main carries watt.
As each said controlled tilting pad of claim 1-5 with carry sex change that tile fragment constitutes can radial bearing, it is characterized in that: controlled tilting pad is positioned at the rotor below, carries watt as main, the auxiliary carrying tile fragment of rotor top carries out spacing to rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210007338 CN102562783B (en) | 2012-01-11 | 2012-01-11 | Variable-performance radial bearing formed by controllable tilting pad and bearing pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210007338 CN102562783B (en) | 2012-01-11 | 2012-01-11 | Variable-performance radial bearing formed by controllable tilting pad and bearing pad |
Publications (2)
| Publication Number | Publication Date |
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| CN102562783A true CN102562783A (en) | 2012-07-11 |
| CN102562783B CN102562783B (en) | 2013-11-06 |
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| CN 201210007338 Expired - Fee Related CN102562783B (en) | 2012-01-11 | 2012-01-11 | Variable-performance radial bearing formed by controllable tilting pad and bearing pad |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102930968A (en) * | 2012-11-02 | 2013-02-13 | 江苏大全封闭母线有限公司 | Supporting device of bus current transformer |
| CN103671483A (en) * | 2013-12-24 | 2014-03-26 | 上海电气电站设备有限公司 | Tilting pad bearing for rotor shaft of steam turbine |
| CN106015314A (en) * | 2016-07-28 | 2016-10-12 | 西安交通大学 | Rigidity adjustable radial sliding bearing with spring of tile block supporting point |
| CN107255117A (en) * | 2017-05-27 | 2017-10-17 | 西安交通大学 | A kind of gap adjustable sliding bearing based on hydraulic pressure |
| CN107269682A (en) * | 2017-07-07 | 2017-10-20 | 哈尔滨理工大学 | A kind of elastic bearing pallet deformed with load change controllable-thrust watt |
| CN108561419A (en) * | 2018-03-20 | 2018-09-21 | 西安理工大学 | A kind of combination gas bearing and Surface Texture design method with Surface Texture |
| CN109505860A (en) * | 2019-01-14 | 2019-03-22 | 中国船舶重工集团公司第七0三研究所 | A kind of butterfly spring support tilting thrust bearing |
| JP2019105352A (en) * | 2017-12-14 | 2019-06-27 | 株式会社Ｓｕｂａｒｕ | Shaft support structure |
| CN109996969A (en) * | 2016-08-31 | 2019-07-09 | 罗伯特·博世有限公司 | Tilting-pad bearing |
| CN110132553A (en) * | 2019-03-25 | 2019-08-16 | 沈阳透平机械股份有限公司 | The determination method, apparatus and computer equipment of tilting-pad bearing watt support stiffness |
| CN112211903A (en) * | 2020-10-23 | 2021-01-12 | 东方电气集团东方汽轮机有限公司 | Uniform-load sliding bearing |
| CN112815003A (en) * | 2021-03-31 | 2021-05-18 | 东方电气集团东方电机有限公司 | Rotating shaft supporting structure, bearing device and wind power generation equipment |
| CN113357260A (en) * | 2021-05-20 | 2021-09-07 | 浙江申发轴瓦股份有限公司 | Novel million-level nuclear power tilting pad bearing |
| CN113565862A (en) * | 2021-06-18 | 2021-10-29 | 湖南崇德科技股份有限公司 | Radial bearing with adjustable fulcrum of tilting pad |
| CN113586245A (en) * | 2021-08-31 | 2021-11-02 | 中国联合重型燃气轮机技术有限公司 | Gas turbine's strutting arrangement and gas turbine |
| CN113606256A (en) * | 2021-09-29 | 2021-11-05 | 启东锦桥轴承有限公司 | Rotary bearing with adjusting structure and convenient for self-locking and fixing |
| US11391325B2 (en) | 2018-07-12 | 2022-07-19 | Daido Metal Company Ltd. | Bearing system, bearing system control method, and computer program for controlling bearing system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4291926A (en) * | 1978-09-22 | 1981-09-29 | Hitachi, Ltd. | Guide bearing device |
| JPS5813220A (en) * | 1981-07-14 | 1983-01-25 | Shimadzu Corp | Tilting pad journal bearing |
| US4643592A (en) * | 1984-11-09 | 1987-02-17 | Lewis David W | Vibration limiting of rotating machinery through active control means |
| US5288153A (en) * | 1993-01-04 | 1994-02-22 | Delaware Capital Formation, Inc. | Tilting pad journal bearing using directed lubrication |
| CN1225984A (en) * | 1999-02-08 | 1999-08-18 | 西安交通大学 | Structure-changeable self-adaptive sliding bearing |
| EP1104504B1 (en) * | 1998-08-19 | 2008-01-09 | Corac Group plc | Hydrodynamic/hydrostatic journal bearing |
| CN101225853A (en) * | 2008-02-01 | 2008-07-23 | 西安交通大学 | Dynamical pressure gas elasticity foil tablet bearing with stability self-adaptive control function |
-
2012
- 2012-01-11 CN CN 201210007338 patent/CN102562783B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4291926A (en) * | 1978-09-22 | 1981-09-29 | Hitachi, Ltd. | Guide bearing device |
| JPS5813220A (en) * | 1981-07-14 | 1983-01-25 | Shimadzu Corp | Tilting pad journal bearing |
| US4643592A (en) * | 1984-11-09 | 1987-02-17 | Lewis David W | Vibration limiting of rotating machinery through active control means |
| US5288153A (en) * | 1993-01-04 | 1994-02-22 | Delaware Capital Formation, Inc. | Tilting pad journal bearing using directed lubrication |
| EP1104504B1 (en) * | 1998-08-19 | 2008-01-09 | Corac Group plc | Hydrodynamic/hydrostatic journal bearing |
| CN1225984A (en) * | 1999-02-08 | 1999-08-18 | 西安交通大学 | Structure-changeable self-adaptive sliding bearing |
| CN101225853A (en) * | 2008-02-01 | 2008-07-23 | 西安交通大学 | Dynamical pressure gas elasticity foil tablet bearing with stability self-adaptive control function |
Non-Patent Citations (1)
| Title |
|---|
| 王晓宁等: "弹性支点水润滑可倾瓦轴承的静动特性分析方法", 《振动与冲击》 * |
Cited By (28)
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| CN102930968B (en) * | 2012-11-02 | 2015-07-08 | 江苏大全封闭母线有限公司 | Supporting device of bus current transformer |
| CN102930968A (en) * | 2012-11-02 | 2013-02-13 | 江苏大全封闭母线有限公司 | Supporting device of bus current transformer |
| CN103671483A (en) * | 2013-12-24 | 2014-03-26 | 上海电气电站设备有限公司 | Tilting pad bearing for rotor shaft of steam turbine |
| CN103671483B (en) * | 2013-12-24 | 2016-06-15 | 上海电气电站设备有限公司 | A kind of tilting-pad bearing for steam turbine rotor shaft |
| CN106015314A (en) * | 2016-07-28 | 2016-10-12 | 西安交通大学 | Rigidity adjustable radial sliding bearing with spring of tile block supporting point |
| CN106015314B (en) * | 2016-07-28 | 2019-04-12 | 西安交通大学 | A kind of stiffness-adjustable bush(ing) bearing of the tile fragment fulcrum with spring |
| US10738823B2 (en) | 2016-08-31 | 2020-08-11 | Robert Bosch Gmbh | Tilting-pad bearing |
| CN109996969A (en) * | 2016-08-31 | 2019-07-09 | 罗伯特·博世有限公司 | Tilting-pad bearing |
| CN109996969B (en) * | 2016-08-31 | 2021-08-24 | 罗伯特·博世有限公司 | Tilting pad bearing |
| CN107255117B (en) * | 2017-05-27 | 2019-04-12 | 西安交通大学 | It is a kind of based on hydraulic gap adjustable sliding bearing |
| CN107255117A (en) * | 2017-05-27 | 2017-10-17 | 西安交通大学 | A kind of gap adjustable sliding bearing based on hydraulic pressure |
| CN107269682A (en) * | 2017-07-07 | 2017-10-20 | 哈尔滨理工大学 | A kind of elastic bearing pallet deformed with load change controllable-thrust watt |
| JP2019105352A (en) * | 2017-12-14 | 2019-06-27 | 株式会社Ｓｕｂａｒｕ | Shaft support structure |
| CN108561419A (en) * | 2018-03-20 | 2018-09-21 | 西安理工大学 | A kind of combination gas bearing and Surface Texture design method with Surface Texture |
| CN108561419B (en) * | 2018-03-20 | 2021-01-15 | 西安理工大学 | Combined gas bearing with surface texture and surface texture design method |
| US11391325B2 (en) | 2018-07-12 | 2022-07-19 | Daido Metal Company Ltd. | Bearing system, bearing system control method, and computer program for controlling bearing system |
| CN109505860A (en) * | 2019-01-14 | 2019-03-22 | 中国船舶重工集团公司第七0三研究所 | A kind of butterfly spring support tilting thrust bearing |
| CN110132553B (en) * | 2019-03-25 | 2020-12-29 | 沈阳透平机械股份有限公司 | Method and device for determining support rigidity of tilting pad bearing bush and computer equipment |
| CN110132553A (en) * | 2019-03-25 | 2019-08-16 | 沈阳透平机械股份有限公司 | The determination method, apparatus and computer equipment of tilting-pad bearing watt support stiffness |
| CN112211903B (en) * | 2020-10-23 | 2022-05-10 | 东方电气集团东方汽轮机有限公司 | Uniform-load sliding bearing |
| CN112211903A (en) * | 2020-10-23 | 2021-01-12 | 东方电气集团东方汽轮机有限公司 | Uniform-load sliding bearing |
| CN112815003A (en) * | 2021-03-31 | 2021-05-18 | 东方电气集团东方电机有限公司 | Rotating shaft supporting structure, bearing device and wind power generation equipment |
| CN113357260A (en) * | 2021-05-20 | 2021-09-07 | 浙江申发轴瓦股份有限公司 | Novel million-level nuclear power tilting pad bearing |
| CN113565862A (en) * | 2021-06-18 | 2021-10-29 | 湖南崇德科技股份有限公司 | Radial bearing with adjustable fulcrum of tilting pad |
| CN113586245B (en) * | 2021-08-31 | 2022-04-26 | 中国联合重型燃气轮机技术有限公司 | Gas turbine's strutting arrangement and gas turbine |
| CN113586245A (en) * | 2021-08-31 | 2021-11-02 | 中国联合重型燃气轮机技术有限公司 | Gas turbine's strutting arrangement and gas turbine |
| CN113606256A (en) * | 2021-09-29 | 2021-11-05 | 启东锦桥轴承有限公司 | Rotary bearing with adjusting structure and convenient for self-locking and fixing |
| CN113606256B (en) * | 2021-09-29 | 2021-12-07 | 启东锦桥轴承有限公司 | Rotary bearing with adjusting structure and convenient for self-locking and fixing |
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Granted publication date: 20131106 Termination date: 20170111 |